PYI is very helpful. I’d call them. What is your max Rpm? If low you have too much pitch.
Joel On Wed, Aug 20, 2025 at 7:27 PM Tom Buscaglia via CnC-List < cnc-list@cnc-list.com> wrote: > On Alera w Maxprop we run at 6.8 kts at 2400 rpm. I can push hard to get > another 3/4 KTS out of it but the fuel consumption goes up over 1 g per > hour. Otherwise it is about .85 gph. > > I hope that helps. No idea of the set up for the maxprop as it has never > needed adjustment. > > GL > > Tom B > > Tom Buscaglia > > SV Alera > > 1990 C&C 37+/40 > > Vashon Island WA > > (305) 409-3660 > > www.sv-alera.com > > > On Aug 20, 2025, at 2:40 PM, rockland bazemore via CnC-List < > cnc-list@cnc-list.com> wrote: > > > RPM WOT is right where the engine is rated around ~3200. > > On Wed, Aug 20, 2025 at 5:15 PM Doug Mountjoy via CnC-List < > cnc-list@cnc-list.com> wrote: > >> What is your RPM at full throttle? Is the engine able to hit max RPM? The >> prop is adjusted correctly when you are just barely able to reach max RPM. >> At least that is what I've been told. >> >> Douglas Mountjoy >> 1988 C&C Landfall 39 >> sv Rebecca Leah >> >> On Wed, Aug 20, 2025, 13:10 rockland bazemore via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >>> Wondering what setups you all have with this configuration. >>> We have a newer 16" Maxprop (I never measured) with recently adjusted to >>> 14º pitch based on Rob's 37+ setup. He does a lot closer to hull speed. >>> >>> When we left for our trip in Annapolis we could do 5.2kn. The bottom was >>> cleaned about 3 weeks prior. >>> I changed the pitch to 14º in Block Is. >>> Couple weeks later and now we only do 4.2kn in slack water. >>> The bottom doesn't seem to be THAT bad. The prop and shaft are very >>> clean. >>> I'm wondering now if its possible transmission slipping? The ATF oil >>> smells fine. >>> >>> Gear ratio 2.14 Prop shaft 1-1/8" >>> >>> Ideas? >>> >>> -- >>> Rockland Bazemore >>> S/V Blue Pearl >>> C&C 37/40+ >>> Annapolis, MD >>> Your contributions help pay the fees associated with this list and help >>> to keep it active. Please help by making a small contribution using PayPal >>> at: https://www.paypal.com/paypalme/stumurray All contributions are >>> greatly appreciated. >> >> Your contributions help pay the fees associated with this list and help >> to keep it active. Please help by making a small contribution using PayPal >> at: https://www.paypal.com/paypalme/stumurray All contributions are >> greatly appreciated. > > Your contributions help pay the fees associated with this list and help to > keep it active. Please help by making a small contribution using PayPal > at: https://www.paypal.com/paypalme/stumurray All contributions are > greatly appreciated. > > Your contributions help pay the fees associated with this list and help to > keep it active. Please help by making a small contribution using PayPal > at: https://www.paypal.com/paypalme/stumurray All contributions are > greatly appreciated.
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